Improvement in blow-pipes



UNITED NSTATI-3s PATENT OFFICE.

STEWART B. PALMER, OF TULLY, NEW YORK.

' IMPROVEMENT INBLow-Pwes.

Specification forming part of Letters Patent No. 151,774, dated September 23, 1856.

To all whom it may concern.' Y

Be it known that I, STEWART B. PALMER, of Tully', in the county of Onondaga and State of New York, have invented a new and useful Improvement in Blow-Pipes for the Use of Den-` being partially broken away or removed in` order to show the invention. Fig. 2 is a plan or top view of the same. Fig. 3 is a detached View of thepump and a portion of the two windchests, the valve-chamber of pump being bisected through its center. y

Similar letters of reference indicate corresponding parts in the several figures.

My invention consists in the employment or use of two wind-chests which are connected by a small pipe provided with a faucet and arranged in relation with the pump and blowpipe, as will be presently shown, whereby a stream or jet `of air of equal volume is forced in a regular or even manner from the nozzle of thc blow-pipe.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A. represents a stand, framing, or bench having a treadle, B, at its lower part.

C is a pitman attached to the treadle.

D is a rectangular case or box having within it two wind-chests, E F, placed side by side. The wind-chests may be constructed of metal or wood, and are connected or communicate with each other by a small pipe, G, provided with a faucet or stop-cock, H. (See Figs. 1 and 2.)

On the top of the chest E a pump, I, is placed, the piston-rod a of which is connected with a bell-crank, b, to which the pitman C is attached. The crank bis connected by a pitman, c, to a crank-pulley, d, on a shaft, e, which has a fly-wheel, J, upon it.

K is avalve-box connected by a pipe, L, with the pump-cylinder, said pipe communi- `eating with each end of the cylinder. The

`cally tested and operates well.

N N are wick-tubes connected by a pipe, t',

with the reservoir M, the tubes being at the outer side of the case D and the pipe i being provided with a faucet, j.

O is a pipewhich is connected with the lower part of the chest F, and to the outer end -of this pipe i a nozzle, P, is attached. This nozzle is provided with a slide, so that it may be raised or lowered, and the pipe O is allowed to turn or rock, so that the end of the nozzle may be moved nearer to orfarther from the flame, as desired.

The-piston of the pump I is operated by the treadle, and the wind is forced into the chest E and through the pipe G into the chest F, and passes from the chest F 'through the pipe O into the nozzle l?. In consequence of the connection of the chest F with the chest E by means of the pipe G the wind is forced out of the nozzle P in a continuous and equal -stream or jet, the vibrations of the piston of the pump which forces the wind intermittently into the chest E being overcome by the pipe G, which keeps the chest F supplied'with Wind from the chest E, the chest F serving as a reservoir from which a continuous current or stream equal in velocity passes through the pipe O.

The passage of the wind through the pipe G may be checked or increased or diminished by regulating the faucet H.

The above improvement has been practi- The whole affair is portable, economical to manufacture, and there are no parts liable to get out of repair.

The reservoir M may be lled through a pipe, Q, which passes through the top of the case D. I do not claim, separately, the pump, nor the mode of operating the'same, nor do I claim the arrangement of the nozzle, for these have been used in similar or analogous de-` vices; but,

Having 'thus described my invention, what wick-tubes N N, and nozzle P, connected with I' claim as new, and desire to secure by Letters the pipe O, substantially as described, for the Patent, isy purpose specified.

The two Windchests E F, connected bythe STEWART B. PALMER. pipe G, provided with the faucet', H, when said Vitnesses: chests thus connected are arranged and used S. M. FARNHAM,

in connection with the pump I, reservoir M, .To B. SHEERAR. 

